/*
 
 RFA Manager, Refractor2 Archive editor.
 Copyright (C) 2008
 Torsten Kammer         torsten@ferroequinologist.de
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */

#import "NSDataRFAAdditions.h"


@implementation NSData (RFAAdditions)

- (unsigned int)littleIntAtPosition:(NSUInteger)position
{
    if (position > self.length || (position + 4) > self.length) return 0;
    unsigned int result;
    [self getBytes:&result range:NSMakeRange(position, 4)];
    return NSSwapLittleIntToHost(result);
}

@end


@implementation NSMutableData (RFAAdditions)

- (void)appendLittleInt:(unsigned int)integer
{
    unsigned int swapped = NSSwapHostIntToLittle(integer);
    [self appendBytes:&swapped length:4];
}

- (void)replaceBytesInRange:(NSRange)range withLittleInt:(unsigned int)integer;
{
    unsigned int swapped = NSSwapHostIntToLittle(integer);
    [self replaceBytesInRange:range withBytes:&swapped length:4];
}

@end